{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["DNA", "cell line", "protein", "RNA", "cell type"], "input": "In addition, the use of IFN-U937 cells reduced interassay variation and simplified assay performance."}
{"DNA": [], "cell line": ["IFN-U937 cells"], "protein": [], "RNA": [], "cell type": []}